Adsorption of Chitosan and Interaction with a Non-Ionic Surfactant on Silica

Abstract:

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Optical reflectometry is applied as a tool for studying single and simultaneous adsorption of a carbohydrate, a nonionic surfactant, and a protein, For the nonionic surfactant poly(ethylene oxide) alkyl ether on a silica surface the adsorption process is fast and reversible, and the maximum adsorbed amount was 2.45 mg•m-2. Also, the effect of pH on the adsorption of chitosan on silica, and its interaction with C12EO5 have been studied. The maximum adsorbed amount was obtained for pH ≥6.8 (0.80 mg•m-2). Changes in surface functionality upon adsorbing C12EO5 on a chitosan layer and the protein, bovine serum albumin, are reported. The results are discussed in terms of adsorption kinetics, adsorbed mass plateau values, and reversibility of layer formation.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

1398-1401

DOI:

10.4028/www.scientific.net/AMR.233-235.1398

Citation:

B. T. Liu et al., "Adsorption of Chitosan and Interaction with a Non-Ionic Surfactant on Silica", Advanced Materials Research, Vols. 233-235, pp. 1398-1401, 2011

Online since:

May 2011

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Price:

$35.00

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